Intermittent cutting transferring device

ABSTRACT

An intermittent cutting transferring device configured to cut a first web into individual sheets and to intermittently transfer the individual sheets onto a second web being continuously fed includes an upper blade roll with a blade and a lower blade roll with an anvil element. Each of the individual sheets cut from the first web is arranged to be guided and transferred onto the second web while the first web is being sucked onto an outer peripheral surface of the lower blade roll by the suction through suction holes formed in a first region on an outer peripheral surface of the lower blade roll. The first region defined as a suction region includes a plurality of the suction holes and a non-suction region does not include the suction holes. The suction region and the non-suction region are provided alternately in a roll rotating direction.

RELATED APPLICATIONS

The present application is based on, and claims priority from, JapaneseApplication No. 2008-171895, filed Jun. 30, 2008, the disclosure ofwhich is hereby incorporated by reference herein in its entirety.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an intermittent cutting transferringdevice configured to intermittently transfer film sheets to a web beingcontinuously fed after cutting a continuum of film sheet into the filmsheets.

2. Description of the Prior Art

An intermittent cutting device is used in processes of manufacturingdisposable diaper. Conventionally, the intermittent cutting device isconfigured to cut a continuum of film sheet printed with patterns suchas characters and figures, into film sheets, and to intermittentlytransfer the film sheets to a web being continuously fed.

Generally, the film sheet is configured to have lower breathability,thinner thickness and more flexibility than the web. That is, the filmsheets have characteristics of low rigidity and resilience.

Such an intermittent cutting transferring device includes: an upperblade roll including a blade on an outer peripheral surface; and a lowerblade roll including a stationary blade on an outer surface and a meshsuction plate over the entire outer peripheral surface (for example, seeJapanese Patent Application Publication No. Hei 10-218471 (pp 4 to 6 andFIG. 3)).

The upper blade roll and the lower blade roll are configured to rotateat approximately the same peripheral speed in directions opposite fromeach other. In addition, these rolls are also configured to rotate atperipheral velocities higher than the velocity in which the continuum offilm sheet is fed to the lower blade roll, and to rotate at a peripheralvelocities approximately equal to or lower than the feeding velocity ofthe web.

Hereinafter, steps of intermittently transferring the film sheet to theweb will be described using the intermittent cutting transferring devicedescribed above.

In a first step, the intermittent cutting transferring device guides thecontinuum of film sheet between the blade and the stationary blade whilethe continuum of film sheet is being sucked onto the outer peripheralsurface of the lower blade roll by the suction through the mesh suctionplate formed over the entire outer peripheral surface of the lower bladeroll.

At this time, the continuum of film sheet slides on the outer peripheralsurface of the lower blade roll to be guided between the blade and thestationary blade since the upper blade roll and the lower blade rollrotate at the peripheral velocities higher than the velocity in whichthe continuum of film sheet is fed to the lower blade roll.

In a second step, the intermittent cutting transferring deviceintermittently cuts the continuum of film sheet by bringing the bladeand the stationary blade into contact with each other, and thus forms afilm sheet.

In a third step, the intermittent cutting transferring device guides thecut film sheet to the web while the cut film sheet is being sucked ontothe outer peripheral surface of the lower blade roll by the suctionthrough the mesh suction plate formed on the entire outer peripheralsurface of the lower blade roll.

In a fourth step, the intermittent cutting transferring devicetransfers, to the web, the film sheet sucked onto the outer side surfaceof the lower blade roll.

However, the conventional intermittent cutting transferring device hasthe following problem. Specifically, the conventional intermittentcutting transferring device is not capable of smoothing out a wrinkle inthe continuum of film sheet once the winkle is formed, since the suctionis performed through the mesh supporting plate formed over the entireouter peripheral surface of the lower blade roll. Particularly, the filmsheet has characteristics of low rigidity and resilience, andaccordingly cannot be restored to its original state once a wrinkle isformed therein.

Then, the continuum of film sheet is cut by the contact of the blade andthe stationary blade with the wrinkle being formed. The cut film sheetis then transferred to the web with the wrinkle being formed.

SUMMARY OF THE INVENTION

The present invention has been made in view of such a situation, and hasan object of providing an intermittent cutting transferring device whichcan suppress the formation of a wrinkle in a continuum of film sheet,and which can smooth out a wrinkle formed in the continuum of film sheeteven when the wrinkle is formed therein.

To solve the above situation, the present invention includes thefollowing aspects. A first aspect of the present invention is anintermittent cutting transferring device configured to cut a continuumof film sheet into the film sheets, and to intermittently transfer oneof the film sheets which are cut, herein after referred to as “a cutfilm sheet”, to a web being continuously fed. The intermittent cuttingtransferring device comprises an upper blade roll including a blade onan outer peripheral surface and a lower blade roll including, on anouter peripheral surface, a stationary blade and a plurality of suctionholes. The upper blade roll and the lower blade roll rotate atapproximately the same peripheral velocity in directions opposite fromeach other, rotate at the peripheral velocities higher than a velocityin which the continuum of film sheet is fed to the lower blade roll, androtate at the peripheral velocity equal to or lower than a feedingvelocity of the web. The continuum of film sheet is guided between theblade and the stationary blade while the continuum of film sheet isbeing sucked onto the outer peripheral surface of the lower blade rollby a suction through the suction holes formed in a first region on theouter peripheral surface of the lower blade roll. The continuum of filmsheet is intermittently cut by bringing the blade and the stationaryblade into contact with each other, and forms the film sheets. The cutfilm sheet is guided and transferred to the web while the cut film sheetis being sucked onto the outer peripheral surface of the lower bladeroll by a suction through the suction holes formed in a second region onthe outer peripheral surface of the lower blade roll. The first regionis configured of a suction region in which a plurality of the suctionholes are formed and a non-suction region in which suction hole is notformed. And the suction region and the non-suction region are providedalternately in a roll peripheral direction.

According to the present invention, the intermittent cuttingtransferring device can be provided which can suppress the formation ofa wrinkle in the continuum of film sheet, and which can smooth out awrinkle formed in the continuum of film sheet even when the wrinkle isformed therein.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view showing an intermittent cuttingtransferring device 1 according to this embodiment.

FIG. 2 is a side view (view on arrow A of FIG. 1) showing theintermittent cutting transferring device 1 according to this embodiment.

FIG. 3 is a roll width direction sectional view (sectional view alongB-B of FIG. 2) showing a lower blade roll 40 according to thisembodiment.

FIG. 4 is a perspective view showing the lower blade roll 40 accordingto this embodiment.

FIG. 5 is a development view showing the lower blade roll 40 accordingto this embodiment.

FIG. 6 is an enlarged view showing the vicinity of suction holesaccording to this embodiment.

FIG. 7 is an upper view showing a film sheet according to thisembodiment.

FIG. 8 is a development view showing the lower blade roll 40 accordingto Modified Example 1.

FIG. 9 is a development view showing the lower blade roll 40 accordingto Modified Example 2.

FIG. 10 is a development view showing the lower blade roll 40 accordingto Modified Example 3.

FIG. 11 is a development view showing the lower blade roll 40 accordingto Modified Example 4.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Hereinafter, one example of an intermittent cutting transferring deviceaccording to the present invention will be described with reference tothe drawings. Note that, throughout the drawings, the same or similarportions are denoted by the same or similar reference numerals. However,the drawings are schematic, and it should be noted that the dimensionalproportions and others are different from their actual values.

Thus, specific dimensions and the like should be determined based on thedescriptions given below. It is needless to say that the dimensionalrelationships and dimensional proportions may differ from one drawing toanother in some parts.

(Configuration of Intermittent Cutting Transferring Device)

First, the configuration of the intermittent cutting transferring deviceaccording to a first embodiment will be described with reference to thedrawings. FIG. 1 is a perspective view showing an intermittent cuttingtransferring device 1 according to the first embodiment. FIG. 2 is aside view (view on arrow A of FIG. 1) showing the intermittent cuttingtransferring device 1 according to the first embodiment.

As shown in FIGS. 1 and 2, the intermittent cutting transferring device1 is configured to intermittently transfer a film sheet 10, obtained bycutting a continuum of film sheet 10A printed with a design such as acharacter or figure, to a web 20 being fed continuously.

Note that a length (L1) of the cut film sheet 10 in its feedingdirection (hereinafter called the “MD direction”) is shorter than alength (L2) thereof in a direction orthogonal to the MD direction (thisdirection is hereinafter called the “CD direction”).

The intermittent cutting transferring device 1 is configured briefly ofan upper blade roll 30, a lower blade roll 40, and a transfer roll 50.

Two blades 32 are provided on an outer peripheral surface 31 of theupper blade roll 30. The upper blade roll 30 rotates at a peripheralvelocity (V₁) approximately the same as a peripheral velocity of thelower blade roll 40. The upper blade roll 30 rotates at the peripheralvelocity (V₁) higher than a velocity (V₂) in which the continuum of filmsheet 10A is fed to the lower blade roll 40 by a pair of driving rolls60 and 61. The upper blade roll 30 rotates at the peripheral velocity(V₁) approximately the same as a feeding velocity (V₃) of the web 20continuously fed by driving rolls 62 and 63, or rotates at theperipheral velocity (V₁) slower than the feeding velocity (V₃) of theweb 20.

In an outer peripheral surface 41 of the lower blade roll 40, two anvilelements 42 are provided, and suction holes 43 which suck the continuumof film sheet 10A and the cut film sheet 10 are formed. The lower bladeroll 40 rotates at the peripheral velocity (V1) approximately the sameas the peripheral velocity of the upper blade roll 30, in a directionopposite to the direction in which the upper blade roll 30 rotates. Theconfiguration of the lower blade roll 40 will be described later (seeFIG. 3).

The transfer roll 50 brings the web 20 which is continuously fed by thedriving rolls 62 and 63 into contact with the lower blade roll 40. Thetransfer roll 50 rotates at a peripheral velocity (V₄) approximately thesame as the feeding velocity (V₃) of the web 20. In other words, thetransfer roll 50 rotates at the peripheral velocity (V₄) approximatelythe same as the peripheral velocity (V₁) of the upper blade roll 30 andthe lower blade roll 40 described above, or rotates at the peripheralvelocity (V₄) higher than the peripheral velocity (V₁) of the upperblade roll 30 and the lower blade roll 40.

(Configuration of Lower Blade Roll)

Next, the configuration of the lower blade roll 40 described above willbe described with reference to the drawings. FIG. 3 is a roll widthdirection sectional view (sectional view along B-B of FIG. 2) showingthe lower blade roll 40 according to the first embodiment.

As shown in FIG. 3, the lower blade roll 40 is formed integrally with aroll shaft 70. The lower blade roll 40 is configured to be rotatedbetween a pair of frames 71A and 71B by shaft bearings 72.

Formed in the lower blade roll 40 are horizontal holes 45A and 45Bpenetrating from one end surface 44 a to the other end surface 44 b ofthe lower blade roll 40 and opening holes 46A and 46B connecting thehorizontal holes 45A and 45B and suction holes 43. The suction holes 43are formed at positions corresponding to the opening holes 46A and 46B.

A suction member 80 is provided between the lower blade roll 40 and theone frame 71A, whereas a sealing member 90 is provided between the lowerblade roll 40 and the other frame 71B.

The suction member 80 and the sealing member 90 each have a diameterapproximately the same as the diameter of the lower blade roll 40, andare formed in a disk shape. The suction member 80 and the sealing member90 are fixed to the frames 71A and 71B, respectively, and are configuredso as not to rotate together with the lower blade roll 40.

Formed in the suction member 80 are a first suction groove 81 whichsucks the continuum of film sheet 10A, a second suction groove 82 whichsucks the cut film sheet 10 to guide the cut film sheet 10 to the web20, and a transfer groove 83 for transferring, on the web 20, the cutfilm sheet 10 sucked onto the outer peripheral surface 41 of the lowerblade roll 40.

The first suction groove 81 is formed at a position corresponding to thehorizontal hole 45A formed in the lower blade roll 40, and also to aportion of the outer peripheral surface 41 of the lower blade roll 40around which the continuum of film sheet 10A is wound. The first suctiongroove 81 is connected with a suction connection pipe 84 connecting thefirst suction groove 81 and suction air supply means (not shown) whichsucks air in the horizontal hole 45A.

The second suction groove 82 is formed at a position corresponding tothe horizontal hole 45B formed in the lower blade roll 40, and to aportion of the outer peripheral surface 41 of the lower blade roll 40around which the cut film sheet 10 is wound. The second suction groove82 is connected with a suction connection pipe 85 connecting the secondsuction groove 82 and suction air supply means (not shown) which sucksair in the horizontal hole 45B.

The transfer groove 83 is formed at a position corresponding to thehorizontal hole 45B formed in the lower blade roll 40, and to a portionto which the cut film sheet 10 is transferred. The transfer groove 83 isconnected with a transfer connection pipe (not shown) connecting thetransfer groove 83 and air releasing means (not shown) which releasesthe suction of air performed by the suction air supply means.

Note that the air releasing means does not necessarily need to releasethe suction of air performed by the suction air supply means, and may beconfigured to blow out air through the transfer groove 83 (transferconnection pipe).

In this embodiment, the suction member 80 is provided between the lowerblade roll 40 and the one frame 71A. However, it is not limited to thisconfiguration, and the suction member 80 may be additionally provided,instead of the sealing member 90, between the lower blade roll 40 andthe other frame 71B. That is, the suction air supply means may performsupply of air from both end sections of the horizontal holes 45A and45B.

(Alignment of Suction Holes)

Next, the alignment of the suction holes 43 provided in the lower bladeroll 40 described above will be described with reference to thedrawings. FIG. 4 is a perspective view showing the lower blade roll 40according to this embodiment. FIG. 5 is a development view showing thelower blade roll 40 according to this embodiment. FIG. 6 is an enlargedview (enlarged view of C in FIG. 5) showing the vicinity of the suctionholes according to this embodiment. FIG. 7 is an upper view showing thefilm sheet according to this embodiment.

As shown in FIGS. 4 and 5, the suction holes 43 are formed in a firstregion 41A and in a second region 41B on the outer peripheral surface 41of the lower blade roll 40.

In the first region 41A and in the second region 41B, the suction holes43 are arranged at predetermined intervals in the roll peripheraldirection and in the roll width direction, and are aligned such that thesuction holes 43 that are adjacent in the roll peripheral direction aredisplaced from each other in the roll width direction (a so-calledstaggered alignment).

Specifically, as shown in FIG. 6, a distance (S1) in the roll peripheraldirection between one suction hole 43 of the suction holes 43 andanother suction hole 43 adjacent to the one suction hole 43 in the rollperipheral direction is configured to be smaller than the diameter (D)of the suction hole 43.

A distance (S2) in the roll width direction between one suction hole 43of the suction holes 43 and another suction hole 43 adjacent to the onesuction hole 43 in the roll peripheral direction is configured to besmaller than the diameter (D) of the suction hole 43.

The first region 41A is configured of suction regions 41A-1 each ofwhich having the multiple suction holes 43 formed therein, andnon-suction regions 41A-2 each of which having no suction hole 43 formedtherein. Accordingly, the suction holding force in the suction regions41A-1 is stronger than the suction holding force in the non-suctionregions 41A-2.

The suction regions 41A-1 and the non-suction regions 41A-2 are providedin the roll width direction. The suction regions 41A-1 and thenon-suction regions 41A-2 are provided alternately in the rollperipheral direction.

It is configured so that a width (W1) of each suction region 41A-1 inthe roll peripheral direction would be shorter than a width (W2) of eachnon-suction region 41A-2 in the roll peripheral direction.

It is configured so that a width (W3) of each suction region 41A-1 inthe roll width direction would be wider than the length (L2) of the cutfilm sheet 10 in the CD direction.

Behind the anvil element 42 in the roll rotation direction, a width (W4)in the roll peripheral direction between a suction region 41A-11 closestto the anvil element 42 and the anvil element 42 is configured to besmaller than the width (W2) of the non-suction region 41A-2 in the rollperipheral direction. Particularly, the width (W4) is preferably smallerthan the diameter (D) of the suction hole 43, and is more preferablymade as small as possible.

The second region 41B is configured of an edge area 41B-1 having themultiple suction holes 43 formed therein, and a center area 41B-2 havingno suction hole 43 formed therein. Accordingly, the suction holdingforce in the edge area 41B-1 is stronger than the suction holding forcein the center area 41B-2.

The edge area 41B-1 faces both side edge regions 11 and a front endregion 12 formed ahead in the proceeding direction of the film sheet 10.

As shown in FIG. 7, the both side edge regions 11 of the cut film sheet10 show regions within 25% of the length (L2) in the CD direction withboth end sections 11A of the cut film sheet 10 as the references. Thefront end region 12 of the cut film sheet 10 formed ahead in theproceeding direction shows a region within 50% of the length (L1) in theMD direction with a front end section 12A of the film sheet as thereference. Note that the area of the center area 41B-2 needs to have anarea that is 50% or more of a whole area of the cut film sheet 10.

A maximum width (W5) of the edge area 41B-1 in the roll width directionis approximately equivalent to the width (W3) of the suction region41A-1 in the roll width direction described above, i.e., configured tobe wider than the length (L2) of the cut film sheet 10 in the CDdirection.

The center area 41B-2 faces a remaining region 13 which is a regionother than the both side edge regions 11 and the front end region 12formed ahead in the proceeding direction of the cut film sheet 10. Notethat, as shown in FIG. 7, the remaining region 13 shows a region insidethe both side edge regions 11 and the front end region 12 formed aheadin the proceeding direction of the cut film sheet 10 described above.

(Operation of Intermittent Cutting Transferring Device)

Next, the operation of the intermittent cutting transferring device 1according to the first embodiment will be described briefly.

In a first step, the intermittent cutting transferring device 1 guidesthe continuum of film sheet 10A to between the blade 32 and the anvilelement 42 with the continuum of film sheet 10A being sucked on theouter peripheral surface 41 of the lower blade roll 40 by the suction ofthe suction air supply means through the suction holes 43 formed in thefirst region 41A (suction region 41A-1) on the outer peripheral surface41 of the lower blade roll 40.

At this time, the continuum of film sheet 10A slides on the outerperipheral surface 41 of the lower blade roll 40 to be guided to betweenthe blade 32 and the anvil element 42 because the upper blade roll 30and the lower blade roll 40 rotate at the peripheral velocity (V1)faster than the velocity (V2) at which the continuum of film sheet 10Ais supplied to the lower blade roll 40.

In a second step, the intermittent cutting transferring device 1intermittently cuts the continuum of film sheet 10A by bringing theblade 32 and the anvil element 42 into contact with each other. The cutfilm sheet 10 is thus formed. Note that the length (L1) of the cut filmsheet 10 in the MD direction is shorter than the length (L2) of the cutfilm sheet 10 in the CD direction.

In a third step, the intermittent cutting transferring device 1 guidesthe cut film sheet 10 onto the web 20 with the cut film sheet 10 beingsucked on the outer peripheral surface 41 of the lower blade roll 40 bythe suction of the suction air supply means through the suction holes 43formed in the second region 41B (edge area 41B-1) on the outerperipheral surface 41 of the lower blade roll 40.

In a fourth step, the intermittent cutting transferring device 1transfers the cut film sheet 10 sucked on the outer side surface 41 ofthe lower blade roll 40 onto the web 20 by causing the air releasingmeans to release the suction of air performed by the suction air supplymeans.

(Operation and Effect)

In the intermittent cutting transferring device 1 according to thisembodiment, the first region 41A is configured of the suction region41A-1 and the non-suction region 41A-2, and the suction region 41A-1 andthe non-suction region 41A-2 are provided alternately in the rollperipheral direction. Accordingly, the continuum of film sheet 10A comesinto a flat state on the non-suction region 41A-2 when the continuum offilm sheet 10A slides on the outer peripheral surface 41 of the lowerblade roll 40 to be guided to between the blade 32 and the anvil element42 (i.e., before being cut).

The continuum of film sheet 10A is held in the flat state on the outerperipheral surface 41 of the lower blade roll 40 while being sucked onthe flat state on the outer peripheral surface 41 of the lower bladeroll 40. That is, the operation of holding the continuum of film sheet10A in the suction region 41A-1 on the outer peripheral surface 41 ofthe lower blade roll 40 in the flat state can be constantly repeated bythe rotation of the lower blade roll 40 with the continuum of film sheet10A being in the flat state in the non-suction region 41A-2. Thus, theformation of a wrinkle in the continuum of film sheet 10A can besuppressed. Even when a wrinkle is formed in the continuum of film sheet10A, the wrinkle formed in the continuum of film sheet 10A can besmoothed out.

In the intermittent cutting transferring device 1 according to thisembodiment, the width (W1) of the suction region 41A-1 in the rollperipheral direction is configured to be shorter than the width (W2) ofthe non-suction region 41A-2 in the roll peripheral direction.Accordingly, the continuum of film sheet 10A slides a longer distance onthe non-suction region 41A-2 when sliding on the outer peripheralsurface 41 of the lower blade roll 40, thereby easily coming into theflat state on the non-suction region 41A-2 (i.e., on a flat surface).Thus, the formation of a wrinkle in the continuum of film sheet 10A canbe suppressed.

In the intermittent cutting transferring device 1 according to thisembodiment, the suction holes 43 are arranged at predetermined intervalsin the roll peripheral direction and in the roll width direction, andare aligned such that the suction holes 43 that are adjacent in the rollperipheral direction are displaced from each other in the roll widthdirection. Accordingly, it becomes easier to uniformly hold thecontinuum of film sheet 10A slid on the outer peripheral surface 41 ofthe lower blade roll 40 in the flat state. Thus, the formation of awrinkle in the continuum of film sheet 10A can be suppressed.

Particularly, the distance (S1) in the roll peripheral direction betweenone suction hole 43 of the suction holes 43 and another suction hole 43adjacent to the one suction hole 43 in the roll peripheral direction isconfigured to be smaller than the diameter (D) of the suction hole 43.The distance (S2) in the roll width direction between one suction hole43 of the suction holes 43 and another suction hole 43 adjacent to theone suction hole 43 in the roll peripheral direction is configured to besmaller than the diameter (D) of the suction hole 43. Thus, it becomeseasier to uniformly hold the continuum of film sheet 10A slid on theouter peripheral surface 41 of the lower blade roll 40 in the flatstate.

The continuum of film sheet 10A has a possibility of being crumpled bythe contact of the blade 32 and the anvil element 42. Thus, the width(W4) between the suction region 41A-1 and the anvil element 42 in theroll peripheral direction is configured to be smaller than the width(W2) of the non-suction region 41A-2 in the roll peripheral direction.Particularly, the width (W4) is preferably smaller than the diameter (D)of the suction hole 43, and more preferably made as small as possible.Accordingly, the continuum of film sheet 10A is sucked on the outerperipheral surface 41 of the lower blade roll 40 by the suction throughthe suction holes 43 formed in the suction region 41A-11 immediatelyafter being cut by the contact of the blade 32 and the anvil element 42.Thus, the continuum of film sheet 10A can be prevented from being foldedor bent.

MODIFIED EXAMPLE

It has been described that the suction region 41A-1 according to theembodiment described above is provided in the roll width direction, butit may be modified as follows. Note that the same portions as those inthe intermittent cutting transferring device 1 (lower blade roll 40)according to the embodiment described above are denoted by the samereference numerals, and differing portions will mainly be described.

(1) Modified Example 1

FIG. 8 is a development view showing the lower blade roll 40 accordingto Modified Example 1. As shown in FIG. 8, the suction region 41A-1 isprovided to be symmetrical with respect to a center line (CL) passingthrough the center of the roll width direction as the reference. Notethat the center line (CL) does not necessarily need to be the center ofthe roll width direction as long as it is the center of the cut filmsheet 10 (continuum of film sheet 10A) in the CD direction, and it isneedless to say that it may be the center between the pair of frames 71Aand 71B, for example.

Specifically, the suction region 41A-1 is configured of a widthdirection region 411 in the roll width direction and inclined regions412A and 412B located in end sections of the width direction region 411and inclined to the roll width direction.

The inclined regions 412A and 412B are inclined to have a wider distancetherebetween to a direction opposite to the roll rotation direction.That is, the one inclined region 412A is inclined in a differentdirection from the other inclined region 412B.

The suction holes 43 formed in the suction region 41A-1 are aligned inthe inclined region 412A and the inclined region 412B. That is, thesuction holes 43 in the inclined regions 412A and 412B are aligned tohave a wider distance therebetween in a direction opposite to the rollrotation direction.

In the intermittent cutting transferring device 1 according to ModifiedExample 1, the inclined regions 412A and 412B are inclined to have awider distance therebetween in a direction opposite to the roll rotationdirection. Accordingly, the continuum of film sheet 10A is pulled towardthe outside in the roll rotation direction and the roll width direction.Thus, even when a wrinkle is formed in the continuum of film sheet 10A,the wrinkle formed in the continuum of film sheet 10A can be smoothedout.

(2) Modified Example 2

FIG. 9 is a development view showing the lower blade roll 40 accordingto Modified Example 2. As shown in FIG. 9, the suction region 41A-1 isprovided to be symmetrical with respect to the center line (CL) as thereference.

Specifically, the suction region 41A-1 is configured of a center area Cprovided on the center line (CL) and an outside region S provided on theoutside of the center area C in the roll width direction.

The center area C is configured of a width direction region 411A in theroll width direction and inclined regions 412A and 412B respectivelylocated in end sections of the width direction region 411A and inclinedto the roll width direction.

The outside region S is configured of width direction regions 411B and411C in the roll width direction and inclined regions 412C and 412Dlocated in end sections of the width direction regions 411B and 411C onthe outside in the roll width direction and inclined to the roll widthdirection. Note that the inclined region 412C is provided to beapproximately parallel to the inclined region 412A, and the inclinedregion 412D is provided to be approximately parallel to the inclinedregion 412B.

The inclined regions 412A to 412D are inclined to have a wider distancetherebetween in a direction opposite to the roll rotation direction withthe center line (CL) as the reference. That is, the inclined regions412A and 412C are inclined in a direction different from the inclinedregions 412B and 412D.

The suction holes 43 formed in the suction region 41A-1 are aligned inthe width direction regions 411A to 411C and the inclined regions 412Ato 412D. That is, the suction holes 43 in the inclined regions 412A to412D are aligned to have a wider distance therebetween in a directionopposite to the roll rotation direction with the center line (CL) as thereference.

In the intermittent cutting transferring device 1 according to ModifiedExample 2, the inclined regions 412A to 412D are inclined to have awider distance therebetween in a direction opposite to the roll rotationdirection, whereby the same operation and effect as those of theintermittent cutting transferring device 1 of Modified Example 1 can beobtained.

(3) Modified Example 3

FIG. 10 is a development view showing the lower blade roll 40 accordingto Modified Example 3. As shown in FIG. 10, the suction region 41A-1 isprovided to be symmetrical with respect to the center line (CL) as thereference.

Specifically, the suction region 41A-1 is configured of: the widthdirection region 411 in the roll width direction; the inclined regions412A and 412B located in the end sections of the width direction region411 and inclined to the roll width direction; and distant regions 413Aand 413B distant from the inclined regions 412A and 412B in the rollwidth direction.

The inclined regions 412A and 412B are inclined to have a wider distancetherebetween in a direction opposite to the roll rotation direction.That is, the one inclined region 412A is inclined in a directiondifferent from the other inclined region 412B.

The distant regions 413A and 413B are provided to be approximatelyparallel to the inclined regions 412A and 412B, respectively. That is,the distant region 413A is provided to be approximately parallel to theinclined region 412A. The distant region 413B is provided to beapproximately parallel to the inclined region 412B.

The suction holes 43 formed in the suction region 41A-1 are alignedalong the width direction region 411, the inclined regions 412A and412B, and the distant regions 413A and 413B, respectively. That is, thesuction holes 43 along the inclined regions 412A and 412B and thedistant regions 413A and 413B are aligned to have a wider distancetherebetween in a direction opposite to the roll rotation direction.

In the intermittent cutting transferring device 1 according to ModifiedExample 3, the inclined regions 412A and 412B and the distant regions413A and 413B are inclined to have a wider distance therebetween in adirection opposite to the roll rotation direction, whereby the sameoperation and effect as those of the intermittent cutting transferringdevice 1 according to Modified Examples 1 and 2 can be obtained.

(4) Modified Example 4

FIG. 11 is a development view showing the lower blade roll 40 accordingto Modified Example 4. As shown in FIG. 11, the suction regions 41A-1are provided to be symmetrical with respect to the center line (CL) asthe reference.

Specifically, multiple suction regions 41A-1 are provided in the rollperipheral direction and the roll width direction. That is, the suctionregions 41A-1 are provided to be spaced away from each other in the rollperipheral direction and the roll width direction.

The suction regions 41A-1 are inclined with respect to the roll widthdirection. A suction region 41A-1A located on one side of the centerline (CL) as the reference is inclined in a direction different from asuction region 41A-1B located on the other side.

The suction holes 43 formed in the suction region 41A-1 are alignedalong the respective separate suction regions 41A-1. That is, thesuction holes 43 form inclinations to have a wider distance therebetweenin a direction opposite to the roll rotation direction with the centerline (CL) as the reference. The suction holes 43 formed along thesuction region 41A-1 located on one side with respect to the center line(CL) as the reference are aligned toward directions different from thesuction holes 43 formed along the suction region 41A-1B located on theother side.

In the intermittent cutting transferring device 1 according to ModifiedExample 3, the suction region 41A-1 is inclined with respect to the rollwidth direction such that the suction region 41A-1A located on one sideof the center line (CL) as the reference is inclined in a directiondifferent from the suction region 41A-1B located on the other side.Accordingly, the same operation and effect as those of the intermittentcutting transferring device 1 according to Modified Examples 1 to 3 canbe obtained.

Other Embodiments

As described above, the content of the present invention has beendisclosed through the embodiments of the present invention. However, thedescriptions and the drawings forming a part of the disclosure shouldnot be construed to limit the present invention.

In the embodiments, it has been described that two blades 32 areprovided on the outer peripheral surface 31 of the upper blade roll 30,but it is not limited thereto. At least one blade 32 may be provided. Inthe same manner, at least one anvil element 42 may be provided on theouter peripheral surface 41 of the lower blade roll 40.

In the embodiments, it has been described that the first region 41Aextends in the roll width direction (the width direction region).However, it is not limited to this, and it is needless to say thatvarious combinations of Modified Examples 1 to 4 can be applied.

In the embodiments, it has been described that the second region 41B isconfigured of the edge area 41B-1 and the center area 41B-2, but it isnot limited thereto. It is needless to say that the configuration may bethe same as that of the first region 41A.

Various alternative embodiments, examples, and application technologywill become apparent to those skilled in the art from this disclosure.Thus, the technical scope of the present invention is defined only bythe claims appropriate from the descriptions above.

1. An intermittent cutting transferring device configured to cut a firstweb into individual sheets and to intermittently transfer the individualsheets onto a second web being continuously fed, said device comprising:an upper blade roll including a blade on an outer peripheral surfacethereof; and a lower blade roll including, on an outer peripheralsurface thereof, an anvil element and a plurality of suction holes,wherein the upper blade roll and the lower blade roll are rotatable inopposite roll rotating directions at approximately the same peripheralvelocity which is higher than a velocity in which the first web is fedto the lower blade roll, and equal to or lower than a feeding velocityof the second web, the blade and the anvil element are configured toguide the first web therebetween while the first web is being suckedonto the outer peripheral surface of the lower blade roll by a suctionthrough the plurality of suction holes formed in a first region of theouter peripheral surface of the lower blade roll, the blade and theanvil element are adapted to be brought into contact with each other tointermittently cut the first web into the individual sheets, each of theindividual sheets cut from the first web is arranged to be guided andtransferred onto the second web while the sheet is being sucked onto theouter peripheral surface of the lower blade roll by a suction throughthe suction holes formed in a second region on the outer peripheralsurface of the lower blade roll, the first region includes a suctionregion in which the plurality of the suction holes are formed and anon-suction region free of said suction holes, the suction region andthe non-suction region are provided alternately in the roll rotatingdirection of the lower blade roll, a closest distance between adjacentsuction holes in the roll rotating direction of the lower blade roll anda closest distance between adjacent suction holes in a roll widthdirection substantially perpendicular to the roll rotating direction aresmaller than a diameter of each said suction hole, the suction regionincludes first and second inclined regions in which the suction holesare arranged in rows inclined to the roll width direction, the firstinclined region is provided on one side of a center line passing throughthe center of the lower blade roll in the roll width direction and thesecond inclined region is provided on the other side of the center line,and the rows of suction holes in the first and the second inclinedregions converge toward the center line in the roll rotating directionof the lower blade roll.
 2. The intermittent cutting transferring deviceaccording to claim 1, wherein a width of the suction region in the rollrotating direction of the lower blade roll is shorter than a width ofthe non-suction region in the roll rotating direction of the lower bladeroll.
 3. The intermittent cutting transferring device according to claim1, wherein the suction holes are arranged at predetermined intervals andin a staggering manner in both the roll rotating direction and the rollwidth direction of the lower blade roll.
 4. The intermittent cuttingtransferring device according to claim 1, wherein, behind the anvilelement in the roll rotating direction, a width in the roll rotatingdirection of the lower blade roll between the suction region closest tothe anvil element and the anvil element is smaller than a width of thenon-suction region in the roll rotating direction of the lower bladeroll.
 5. The intermittent cutting transferring device according to claim4, wherein a width in the roll rotating direction of the lower bladeroll between the suction region closest to the anvil element and theanvil element is smaller than the diameter of each suction hole.
 6. Theintermittent cutting transferring device according to claim 1, whereinthe second region includes a peripheral area having the suction holestherein and a center area free of said suction holes, thereby a suctionholding force in the peripheral area is stronger than that in the centerarea.